检索结果-南通市图书馆

Real Time mR Thermometry Using Tm-DOTmA

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Electromagnetic Analysis and Applications 2015年第4期7卷 115-125页

作者： Bu S. Park.m.rtin J. Lizak Leonardo m. Angelone Sunder S. rajan Division of Biomedical Physics (DBP)/OSEL/CDRH Food and Drug Administration (FDA) Silver Spring MD USA mouse Imaging Facility National Institute of Neurological Disorders and Stroke (NINDS) National Institutes of Health (NIH) Bethesda MD USA

We present results of real-time and sensitive mR Thermometry (mRT) using a paramagnetic lanthanide complex thulium 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetramethyl-1,4,7,10-tetraa-cetate (Tm-DOTmA) to study radio frequency (RF) heating induced by a copper wire and a titanium bone screw in an agarose gel phantom. The temperature dependent chemical shift coefficient (TDCSC) of the methyl resonance was found to be 0.7 ± 0.03 ppm/°;C in agarose gel. The methyl protons of Tm-DOTmA were imaged using 2D chemical shift imaging (CSI) and 3D phase mapping methods (Pmm), approximately 7 sec long, and compared with conventional water proton resonance frequency (PRF) method. Two RF-induced heating approaches were tested: 1) using a prescan before the mRT;or 2) using the heating caused by the imaging pulse during continuous imaging. Both approaches allowed detection of temperature changes which are less than 1°;C and continuously mapping temperature changes around the copper wire. Using a heating pre-scan, the Tm-DOTmA 2D-CSI allowed better qualitative visualization of the temperature changes around the titanium screw compared with water phase shift thermometry. Numerical electromagnetic field simulations were also conducted for the evaluation of orientation dependency using the copper wire in 4.7 T (200 mHz). Thermometry approach using Tm-DOTmA can detect smaller temperature changes with decreased scanning time resulting in real-time and sensitive temperature mapping.

关键词： Tm-DOTmA CSI PRF Real-Time FDTD RF Temperature mapping

SURGICAL OUTCOmES AND STRATEGY OF HYPERTROPHIC OBSTRUCTIVE CARDIOmYOPATHY

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

SURGICAL OUTCOMES AND STRATEGY OF HYPERTROPHIC OBSTRUCTIVE C...

Anti-enteric bacterial activity of the traditional medicinal plants of kanyak.m.ri coast,Tamilnadu,India

第八届华东六省一市胸心血管外科学术会议

作者：朱亚彬 S．rajan V．m．kurian 刘志勇 Department of Thoracic and Cardiovascular Surgery of Su Bei Hospital Affiliated to Yang Zhou University Yang Zhou 225001 P．R．China Department of Thoracic and Cardiovascular surgery madras medical mission 4-ADr J．Jayalalitha nagarMoggapair eastChennai 600037．India

OBJECTIVE:To evaluate the surgical clinical results of hypertrophic obstructive cardiomyopathy． mETHOD:We retrospectively collected the data of 24 patients who underwent the surgical management in past ten years in both of our hospital in China and madras medical mission in India,myomectomy was carried out on all patients,among these 3 patients had mitral valve replacement,2 patients had mitral valve repair(anterior mitral leaflet plication),2 patients had aortic valve replacement,1 patient had aortic valve

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Coastal Life medicine 2015年第8期 640-644页

作者： Suyambu rajan Parameshwaran Suvetha Thiyagarajan Thirunalasundari Solomon Jeeva Department of microbiology M.R.Government Arts CollegeMannargudi-614001Thiruvarur DistrictTamilnaduIndia Department of microbiology Srimad Andavan Arts and Science CollegeThiruvanai KoilTiruchirappalli-620005TamilnaduIndia Department of Biotechnology Bharathidasan UniversityTiruchirappalli-620024TamilnaduIndia Department of Botany Scott Christian CollegeNagercoil-629003KanyakumariTamilnaduIndia

Objective:To evaluate the antimicrobial potentials of 6 traditionally used medicinal plants to treat gastrointestinal infection against pathogenic bacteria,as most of the pathogens develop drug resistance against commonly used ***:Crude extracts from different parts of different plants were tested against bacterial strains of clinical *** of bioactive principles was done with water and *** of antibacterial activity was done by disc diffusion assay against selected bacterial ***:Of the 6 different plant materials tested,extracts prepared from Psidium guajava leaves showed significantly higher *** prepared using alcohol exhibited higher antibacterial activity when compared to their corresponding aqueous ***:The findings of the present study suggested that phytochemical extracts of the presently studied plant materials possess significant anti-enteric bacterial activity,and thus lend pharmacological credibility to the suggested traditional use of the plant as a natural remedy for the treatment,management and/or control of gastrointestinal diseases in the coastal tracts of kanyak.m.ri district,Tamilnadu,India.

关键词： Antibacterial activity Disc diffusion assay Enteric bacteria Plant extracts

Pharmacological, Ethnomedicinal, and Evidence-Based Comparative Review of moringa oleifera Lam.(Shigru) and Its Potential Role in the management of malnutrition in Tribal Regions of India, Especially Chhattisgarh

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Traditional Chinese medicine 2022年第3期8卷 314-338页

作者： kishor Sonewane Sharda Swaroop Chouhan mariappan rajan Nagendra Singh Chauhan Om Prakash Rout Awanish k.m.r Gyanendra Singh Baghel Prashant k.m.r Gupta Department of kaumarabhritya-Balaroga Shri NPA Government Ayurveda CollegeRaipurChhattisgarhIndia Department of Natural Chemistry Madurai Kamraj UniversityMaduraiTamil NaduIndia Drug Testing Lab Avam Anushandhan kendra Department of AYUSHChhattisgarhIndia Department of Dravya Guna Shri NPA Government Ayurveda CollegeRaipurChhattisgarhIndia Department of Biotechnology National Institute of TechnologyRaipurChhattisgarhIndia

moringa oleifera Lam.(Shigru)(moringaceae family) is a traditional medicine used for control of diabetes, obesity, asthma, and cardiac,liver, gastrointestinal, infective, and brain disorders, such as depression and Alzheimer's disease. In Ayurvedic literature, Shigru is among few drugs having Balya(nourishing) as well as medohara(antiobesity) property. This review focuses on valid connections between the properties documented in ancient literature and current pharmacological knowledge of moringa, including pharmacological actions, phytochemistry,botanical description, and how moringa can tackle malnutrition in India, especially Chhattisgarh. All information about m. oleifera was obtained from electronic scientific databases such as Pubmed, Web of Science, Scopus, ScienceDirect, Elsevier, Google Scholar, Traditional knowledge Digital Library, and Indian Traditional Books(Ancient Ayurveda literatures, The Wealth of India, and The Ayurvedic Formulary of India), postgraduate/doctoral thesis, and googling the keyword m. oleifera. m. oleifera have anti-oxidant, antimicrobial, anti-diabetic,anti-obesity, anti-inflammatory, cardioprotective, hepatoprotective, neuroprotective, gastroprotective, wound-healing properties and it can potentially tackle malnutrition. This review describes the key information related to botanical description of m. oleifera, phytochemistry,pharmacological actions, clinical studies, toxicological studies, better utilization as food therapeutics, and ethnobotanical and evidence-based comparative review of m. oleifera. m. oleifera can effectively tackle malnutrition in India, especially Chhattisgarh. The authors emphasize the need for future in-depth ethnopharmacological lead-based research and clinical studies to expand m. oleifera pharmacological activities,clinical efficacy, and safety.

关键词： Ethnobotanical practices ethnomedicine moringa oleifera phytochemicals pharmacological action

Performance of Corrugated Wick in “V” Type Solar Still

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Smart Grid and Renewable Energy 2013年第8期4卷 483-487页

作者： Pattarumadathil Unikkatt Suneesh rajan Jayaprakash Tekkethil Namshad Sanjay k.m.r Department of Physics Sri Ramakrishna Mission Vidhyalaya College of Arts and Science Coimbatore India Dr. B. R. Ambedkar University Bihar India National Institute of Technology Calicut India R&D Centre Bharathiyar University Coimbatore India

This works reports performance of corrugated wick in a “V” type solar still. The still was tested in two configurations: plane wick integrated with drip system and corrugated wick integrated with drip system. A mathematical modeling has been proposed to validate experimental results. The experiment was performed in Tamilnadu, India climatic conditions (11° North 77° East). Experimental investigations on productivity and internal heat transfer are analyzed. The results indicate that the mean standard deviations between theoretical and experimental values are less than 7% (temperature of rippled wick), 3% (temperature of glass in rippled system), 6% (temperature of flat wick) and 3% (temperature of glass in flat system) an average for the working hours of the day. The distillate yield produced was 2800 ml/m2/day by plane wick and 2200 ml/m2/day by corrugated wick.

关键词： Solar Still Fresh Water Glass Corrugated Wick

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

超低功率短距离无线电收发器

中国电子商情(基础电子) 2014年第6期 34-38页

作者： Reghu rajan microsemi公司

最近几年,无线传感器网络(wi rel e s s sensornetworks,WSN)市场和超低功率(ultralow power,ULP)无线电市场实现巨大增长。此类无线电应用从大量基于占空比的点测传输扩展到更多数据密集连续链接,同时采用更小电池和可替代能源,比如能... 详细信息

最近几年,无线传感器网络(wi rel e s s sensornetworks,WSN)市场和超低功率(ultralow power,ULP)无线电市场实现巨大增长。此类无线电应用从大量基于占空比的点测传输扩展到更多数据密集连续链接,同时采用更小电池和可替代能源,比如能量采集(energy harvesting,EH)设备来供电。WSN应用包括短程机器对机器(machine-to-machine,m2m)、人体周围的医疗传感器和大量针对新兴市场感测和自动化的其它应用。人体周围的无线传感器可以分为两类

关键词：无线电传感器换能器电子技术收发器短距离低功率

New frontiers for the materials genome initiative

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

npj Computational materials 2019年第1期5卷 776-798页

作者： Juan J.de Pablo Nicholas E.Jackson michael A.Webb Long-Qing Chen Joel E.moore Dane morgan Ryan Jacobs Tresa Pollock Darrell G.Schlom Eric S.Toberer James Analytis Ismaila Dabo Dean m.DeLongchamp Gregory A.Fiete Gregory m.Grason Geoffroy Hautier Yifei mo krishna rajan Evan J.Reed Efrain Rodriguez Vladan Stevanovic Jin Suntivich katsuyo Thornton Ji-Cheng Zhao Institute for molecular Engineering University of ChicagoChicagoIL 60615USA Department of materials Science and Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Physics University of CaliforniaBerkeleyBerkeleyCA 94720USA Department of materials Science and Engineering University of Wisconsin-MadisonMadisonWI 53706USA materials Department and materials Research Laboratory University of CaliforniaSanta BarbaraCA 93106USA Department of materials Science and Engineering Cornell UniversityIthacaNY 14853USA Department of Physics Colorado School of MinesGoldenCO 80401USA materials measurement Laboratory National Institute of Standards and TechnologyGaithersburgMD 20899USA Department of Physics University of Texas at AustinAustinTX 78712USA Department of Polymer Science and Engineering University of MassachusettsAmherstMA 01003USA Institute of Condensed matter and Nanosciences UniversitéCatholique de Louvain1348 Louvain-la-NeuveBelgium Department of materials Science and Engineering University of MarylandCollege ParkMD 20742USA Department of materials Design and Innovation University of Buffalo–The State University of New YorkBuffaloNY 14260-5030USA Department of materials Science and Engineering Stanford UniversityStanfordCA 94305USA Department of Chemistry and Biochemistry University of MarylandCollege ParkMD 20742USA Department of metallurgical and materials Engineering Colorado School of MinesGoldenCO 80401USA Department of materials Science and Engineering University of MichiganAnn ArborMI 48109USA Department of materials Science and Engineering The Ohio State UniversityColumbusOH 43210USA

The materials Genome Initiative(mGI)advanced a new paradigm for materials discovery and design,namely that the pace of new materials deployment could be accelerated through complementary efforts in theory,computation,and *** with numerous successes,new challenges are inviting researchers to refocus the efforts and approaches that were originally inspired by the *** may 2017,the National Science Foundation sponsored the workshop“Advancing and Accelerating materials Innovation Through the Synergistic Interaction among Computation,Experiment,and Theory:Opening New Frontiers”to review accomplishments that emerged from investments in science and infrastructure under the mGI,identify scientific opportunities in this new environment,examine how to effectively utilize new materials innovation infrastructure,and discuss challenges in achieving accelerated materials research through the seamless integration of experiment,computation,and *** article summarizes key findings from the workshop and provides perspectives that aim to guide the direction of future materials research and its translation into societal impacts.

关键词： utilize frontier accomplishment

mosquito larvicidal properties of volatile oil from salt marsh mangrove plant of Sesuvium portulacastrum against Anopheles stephensi and Aedes aegypti

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Coastal Life medicine 2013年第1期 66-71页

作者： mohamed Yacoob Syed Ali Venkatraman Anuradha SyedAbudhair Sirajudeen Prathasarathy Vijaya Nagarajan Yogananth Ramachandran rajan Peer mohamed kalitha Parveen PG&Research Department of Biotechnology Mohamed Sathak College of Arts&ScienceSholinganallurChennai-600119Tamil NaduIndia Center for marine Fisheries Research Institute Mandapam CampTamil NaduIndia

Objective:To identify the larvicidal activity of the volatile oil from Sesuvium portulacastrum(***)against Anopheles stephensi and Aedes ***:Volatile oil extract of *** was prepared in a graded series of *** test for the larvicidal effect of volatile oil against mosquitos larvae was conducted in accordance with the WHO standard *** of 25 early 4th instar larvae of two mosquitoes were transferred to 250 mL enamel bowl containing 199 mL of distilled water and 1 mL of plant *** experiment was conducted with triplicate with concurrent a control ***:Volatile oil extract of *** showed toxicity against 4th instar larvae of Aedes aegypti and Anopheles stephensi with equivalent LC50 value[(63±7.8)μL/mL,LCL-UCL=55.2-64.0]and LC90 value[(94.2±3.9)μL/mL]in maximum activity with minimum concentration(200μL/mL)of volatile oil and followed by maximum activity of 250μL concentration showed LC50 value=(68.0±8.2)μL/mL,LCL-UCL=66.26-69.2 and LC50 value of(55.2±2.8)μL/mL,LCL-UCL=53.7-56.9,LC90=(95.2±1.25)μL/mL and followed by 250μL of oil extract against 4th instar larvae of Aedes aegypti ***:It is inferred from the present study that,the extracts from salt marsh mangrove plan of *** are identified as a potential source of safe and efficacious mosquito control agents for the management of vector borne diseases of malaria and dengue.

关键词： Aedes aegypti Anopheles stephensi Larvicidal Oleic acid Sesuvium portulacastrum

Improvements to Temperature, Warburg Impedance, and Voltage Computations for a Design-Based Predictive model for Lithium-Ion Capacitors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

materials Sciences and Applications 2020年第6期11卷 347-369页

作者： Davis George moye Pedro L. moss Dhevathi rajan Rajagopalan kannan Xujie Chen Omonayo Bolufawi Wanjun Cao Simon Y. Foo moye Consultants Tallahassee FL USA Greencastle Sustainable Electrical Energy Systems Tallahassee FL USA Department of Electrical and Computer Engineering Florida A&M University and Florida State University Tallahassee FL USA

An earlier study manipulated the Butler-Volmer equation to effectively model a lithium-ion capacitor’s (LIC) energy storage as a function of its constituent components and charge current. However, this model had several shortcomings: computed temperature values were too low, voltage was inaccurate, and the model required Warburg impedance values that were two orders of magnitude higher than experimental results. This study began by analyzing the model’s temperature and voltage computations in order to justify output values. Ultimately, these justifications failed. Therefore, in situ temperature rise was measured during charge cycles. Experimental results indicated that temperature increases minimally during a charge cycle (·kg-1) temperature increase is negligible. After it was found that LIC temperature change is minimal during a charge cycle, the model accurately computed LIC voltage during the charge cycle and computed Warburg impedance that agreed with values derived from earlier experimental studies, even falling within the measurements’ precision error.

关键词： Lithium-Ion Capacitor Randles Equivalent Circuit model Butler-Volmer Equation